linux-kernel - Re: [PATCH v2 2/2] arm64: dts: qcom: Add msm8916 CoreSight components

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Message-ID: <1431094640.21307.23.camel@linaro.org>
Date:	Fri, 08 May 2015 17:17:20 +0300
From:	"Ivan T. Ivanov" <ivan.ivanov@...aro.org>
To:	Mathieu Poirier <mathieu.poirier@...aro.org>
Cc:	Kumar Gala <galak@...eaurora.org>,
	Pratik Patel <pratikp@...eaurora.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v2 2/2] arm64: dts: qcom: Add msm8916 CoreSight
 components


On Fri, 2015-05-08 at 08:13 -0600, Mathieu Poirier wrote:
> On 8 May 2015 at 07:47, Ivan T. Ivanov ivanov@...aro.org> wrote:
> > On Fri, 2015-05-08 at 07:38 -0600, Mathieu Poirier wrote:
> > > On 7 May 2015 at 09:36, Ivan T. Ivanov ivanov@...aro.org> wrote:
> > > > Add initial set of CoreSight components found on Qualcomm's 8x16 chipset.
> > > > 
> > > > 
> > > > +       replicator@...000 {
> > > > +               compatible = "qcom,coresight-replicator", "arm,primecell";
> > > 
> > > Shouldn't it be "qcom,coresight-replicator1x" ?
> > > 
> > 
> > 
> > 
> > True, I still wonder, why we have to have this compatible string?
> > Drivers are probed by amba_id and "arm,primecell", after all.
> > 
> 
> Drivers have their own compatible strings for historical reasons,
> something I've been meaning to fix for a long time now...
> 

Yep, I see that they have been platform drivers in the past, but now 
they are not, except coresight-replicator driver. IMHO, having
additional compatible string could lead just to confusion. 

Regards,
Ivan
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